Tuning the Coordination Sphere around Highly Luminescent Lanthanide Complexes.
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| Title: | Tuning the Coordination Sphere around Highly Luminescent Lanthanide Complexes. |
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| Authors: | Charbonnière, Loïc1 l.charbonn@chimie.u-strasbg.fr, Mameri, Samir1, Kadjane, Pascal1, Platas-Iglesias, Carlos2, Ziessel, Raymond1 |
| Source: | Inorganic Chemistry. 5/5/2008, Vol. 47 Issue 9, p3748-3762. 15p. 8 Diagrams, 3 Charts, 7 Graphs. |
| Subjects: | Water-soluble polymers, Rare earth metals, Ligands (Chemistry), Luminescence, Spectrum analysis, Anions |
| Abstract: | A series of three ligands designed for the formation of water-soluble luminescent lanthanide complexes is described. All ligands are based on a 6″-carboxy-2,2′:6′,2″-terpyridine framework linked via a methylene bridge to n-butylamine. The second negatively charged arm consists of a 6-carboxy-2-methylenepyridine for L1, a 6′-carboxy-6-methylene-2,2′-bipyridine for L2, and a 6″-carboxy-6-methylene-2,2′:6′,2″-terpyridine for L3. The photophysical properties of the Eu and Tb complexes were studied in aqueous solutions by means of absorption spectroscopy and steady-state and time-resolved luminescence spectroscopy. Luminescence excited-state lifetimes were recorded and led to the determination of two water molecules in the first coordination sphere. The europium complexes were characterized by means of ¹H NMR spectroscopy in D2O and DFT calculations performed at the B3LYP level both in vacuo and in aqueous solution. Finally, the influence of different phosphorylated anions such as HPO42-, ATP4-, ADP3-, and AMP2- on the luminescence properties of the [EuLX(H2O)2]+ complexes (X = 1-3) was investigated in buffered aqueous solutions (0.01 M IRIS, pH 7.0), showing a significant interaction of ATP4- with [Eu(L2)(H2O)2]+. The coordination of anions was understood in terms of partial decomplexation of one arm of the ligands and water displacement, with formation of ternary species, and it was rationalized on the basis of the structural models of the complexes obtained from DFT calculations. [ABSTRACT FROM AUTHOR] |
| Copyright of Inorganic Chemistry is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 32181382 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Tuning the Coordination Sphere around Highly Luminescent Lanthanide Complexes. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Charbonnière%2C+Loïc%22">Charbonnière, Loïc</searchLink><relatesTo>1</relatesTo><i> l.charbonn@chimie.u-strasbg.fr</i><br /><searchLink fieldCode="AR" term="%22Mameri%2C+Samir%22">Mameri, Samir</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Kadjane%2C+Pascal%22">Kadjane, Pascal</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Platas-Iglesias%2C+Carlos%22">Platas-Iglesias, Carlos</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Ziessel%2C+Raymond%22">Ziessel, Raymond</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Inorganic+Chemistry%22">Inorganic Chemistry</searchLink>. 5/5/2008, Vol. 47 Issue 9, p3748-3762. 15p. 8 Diagrams, 3 Charts, 7 Graphs. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Water-soluble+polymers%22">Water-soluble polymers</searchLink><br /><searchLink fieldCode="DE" term="%22Rare+earth+metals%22">Rare earth metals</searchLink><br /><searchLink fieldCode="DE" term="%22Ligands+%28Chemistry%29%22">Ligands (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Luminescence%22">Luminescence</searchLink><br /><searchLink fieldCode="DE" term="%22Spectrum+analysis%22">Spectrum analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Anions%22">Anions</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: A series of three ligands designed for the formation of water-soluble luminescent lanthanide complexes is described. All ligands are based on a 6″-carboxy-2,2′:6′,2″-terpyridine framework linked via a methylene bridge to n-butylamine. The second negatively charged arm consists of a 6-carboxy-2-methylenepyridine for L1, a 6′-carboxy-6-methylene-2,2′-bipyridine for L2, and a 6″-carboxy-6-methylene-2,2′:6′,2″-terpyridine for L3. The photophysical properties of the Eu and Tb complexes were studied in aqueous solutions by means of absorption spectroscopy and steady-state and time-resolved luminescence spectroscopy. Luminescence excited-state lifetimes were recorded and led to the determination of two water molecules in the first coordination sphere. The europium complexes were characterized by means of ¹H NMR spectroscopy in D2O and DFT calculations performed at the B3LYP level both in vacuo and in aqueous solution. Finally, the influence of different phosphorylated anions such as HPO42-, ATP4-, ADP3-, and AMP2- on the luminescence properties of the [EuLX(H2O)2]+ complexes (X = 1-3) was investigated in buffered aqueous solutions (0.01 M IRIS, pH 7.0), showing a significant interaction of ATP4- with [Eu(L2)(H2O)2]+. The coordination of anions was understood in terms of partial decomplexation of one arm of the ligands and water displacement, with formation of ternary species, and it was rationalized on the basis of the structural models of the complexes obtained from DFT calculations. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Inorganic Chemistry is the property of American Chemical Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1021/ic702472n Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 3748 Subjects: – SubjectFull: Water-soluble polymers Type: general – SubjectFull: Rare earth metals Type: general – SubjectFull: Ligands (Chemistry) Type: general – SubjectFull: Luminescence Type: general – SubjectFull: Spectrum analysis Type: general – SubjectFull: Anions Type: general Titles: – TitleFull: Tuning the Coordination Sphere around Highly Luminescent Lanthanide Complexes. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Charbonnière, Loïc – PersonEntity: Name: NameFull: Mameri, Samir – PersonEntity: Name: NameFull: Kadjane, Pascal – PersonEntity: Name: NameFull: Platas-Iglesias, Carlos – PersonEntity: Name: NameFull: Ziessel, Raymond IsPartOfRelationships: – BibEntity: Dates: – D: 05 M: 05 Text: 5/5/2008 Type: published Y: 2008 Identifiers: – Type: issn-print Value: 00201669 Numbering: – Type: volume Value: 47 – Type: issue Value: 9 Titles: – TitleFull: Inorganic Chemistry Type: main |
| ResultId | 1 |
